How To Fix RTCMMD146 - Node assignment & cannot be deleted because a shop assignment exists

SAP Error Message - Details

• Message type: E = Error

• Message class: RTCMMD - Article Hierarchy

• Message number: 146

• Message text: Node assignment & cannot be deleted because a shop assignment exists

What causes this issue?

The node assignment to delete still has a shop assignment.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RTCMMD146 - Node assignment & cannot be deleted because a shop assignment exists ?

  The SAP error message RTCMMD146 indicates that a node assignment cannot be deleted because there is an existing shop assignment associated with it. This typically occurs in the context of managing master data in SAP, particularly in the areas of materials management or production planning.
  Cause:
  The error arises when you attempt to delete a node (such as a material, plant, or storage location) that is still linked to a shop assignment. A shop assignment usually refers to a specific configuration or assignment of a material to a shop floor or production area, and the system prevents deletion to maintain data integrity.
  Solution:
  To resolve this error, you need to follow these steps:
  
  
  Identify the Shop Assignment: 
  
  Use transaction codes like MM03 (Display Material) or CS03 (Display Material BOM) to check the details of the node you are trying to delete. Look for any existing shop assignments that are linked to the node.
  
  
  
  Remove the Shop Assignment:
  
  Navigate to the relevant transaction where the shop assignment is maintained (e.g., CR02 for changing work centers or MM02 for changing material master data).
  Remove or deactivate the shop assignment that is preventing the deletion of the node.
  
  
  
  Delete the Node:
  
  Once the shop assignment is removed, you can proceed to delete the node using the appropriate transaction (e.g., CR01 for creating work centers or MM01 for creating material master data).
  
  
  
  Check for Other Dependencies:
  
  Ensure that there are no other dependencies or assignments that might prevent the deletion. This may include checking for open orders, production schedules, or other linked data.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MM01, MM02, MM03, CR01, CR02, and CS01 for managing materials and work centers.
  Data Integrity: Understand that SAP enforces data integrity rules to prevent accidental deletions that could lead to inconsistencies in the system.
  User Permissions: Ensure that you have the necessary permissions to make changes to the master data and shop assignments.
  Documentation: Refer to SAP documentation or help files for detailed guidance on managing master data and understanding the implications of deletions.
  
  By following these steps, you should be able to resolve the RTCMMD146 error and successfully delete the node assignment.